<template>
  <view class="cart-container" v-if="cart.length !== 0 ">
    <my-address></my-address>
    
    <!-- 标题区域 -->
    <view class="cart-title">
      <uni-icons type="shop" size="18"></uni-icons>
      <text class="cart-title-text">购物车</text>
    </view>
    <!-- 商品列表区域 -->
    <uni-swipe-action>
      <block v-for="(goods,i) in cart" :key="i">
        <!-- 滑动组件 -->
        <uni-swipe-action-item :right-options="options" @click="swipeActionClickHandler(goods)">
          <my-goods :goods="goods" :show-num="true" :show-radios="true" @radio-change="radioChangeHandler" @num-change="numChangeHandler"></my-goods>
        </uni-swipe-action-item>
      </block>
    </uni-swipe-action>
    
    <!-- 结算组件 -->
    <my-settle></my-settle>
  </view>
  
  <!-- 购物车空白区域 -->
  <view class="empty-cart" v-else>
    <image src="../../static/empty.webp" class="empty-img"></image>
    <text class="tip-text">空空如也</text>
  </view>
</template>

<script>
  import { mapGetters } from 'vuex'
  import badgeMix from '../../mixnis/tabbar-badge.js'
  import { mapState } from 'vuex'
  import { mapMutations } from 'vuex'
  
  export default {
    mixins:[badgeMix],
    data() {
      return {
        options:[{
          text:'删除',
          style:{
            backgroundColor:'#c00000'
          }
        }]
      };
    },
    computed:{
      ...mapGetters('m_cart', ['total']),
      ...mapState('m_cart',['cart'])
    },
    methods:{
      ...mapMutations('m_cart', ['updateGoodsState','updateGoodsCount','removeGoodsById']),
      // 勾选状态发生了变化
      radioChangeHandler(e){
        this.updateGoodsState(e)
      },
      numChangeHandler(e){
        this.updateGoodsCount(e)
      },
      swipeActionClickHandler(goods){
        this.removeGoodsById(goods.goods_id)
      }
    },
  }
</script>

<style lang="scss">
  .cart-container{
    padding-bottom: 50px;
  }
.cart-title{
  height: 40px;
  display: flex;
  align-items: center;
  font-size: 14px;
  padding-left: 5px;
  border-bottom: 1px solid #efefef;
}
.cart-title-text{
  margin: 10px;
}
.empty-cart{
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 150px;
}
.empty-img{
  width: 90px;
  height: 90px;
}
.tip-text{
  font-size: 12px;
  color: gray;
  margin-top: 15px;
}
</style>
